Fuel-mixing apparatus



July 7, 1925.' 1,544,922

' "r MlDsLEY, JR

FUEL MIXNG APPARATUS Filed Fb, 2a. 1924l s sheetslsneet i July 7, 1925.' 1,544,922

y T. MIDGLEY, JR

FuE-L MIXING APPARATUS Filed Feb, 28. 19:24 s sheetslsneet 2 .July 7,1925. i 1,544,922

' T. MIDGLEY, JR

vFUEL MIXING APPARATUS Filed Feb', 28, 1924 3 Sheet s -Sheet 5 24. l v l LIiXing Apparatus, of which the following' Paese-a July.. 1, `192s. I

f UNITED STATES 1..'i4422 PATENT" OFFICE'.

Tnoims mom, n., or nAYToiL'omo, Assro'non, BY 'MESNE ASSIGNMENTS, To

emmnAI. IoTons coaroaATroN, or DETROIT, uIcHIeAN, A coaroaATIoN` or DELAWARE.

.i runt-mme ArrAnATus.

Appunti nea rebrury'ss, 1.924. serial 11.- 695,846.

To allwhomz'tmay concem: i

v:Be itY known .that I, THOMAS MlDGLEr, Jr., a citizen ofthe'United States of America, residing at Dayton, county of Montgomery, State of Ohio, have invented certain new and useful Improvements in Fuelis a full, clear, and'exact description.

YThis invention relates to means for adding a relatively small amount of a fuel component, such as lead tetra ethyl or mixtures thereof to gasoline or kerosene at the time the fuel is sold at a filling station. The principal objects of the-present invention are to provide an apparatus with-which the fuel can be dispensed with or without the addition of an anti-knock substance added there'- to, to provide an apparatus which indicates to the consumer the amount of anti-knock substance added, and to provide an antiknock metering means capable of attachment tol different forms of fuel pumps used at lilling stations. v

In the accompanying' drawings which illustrate a form of apparatus'embodying my invention and adapted particularly for large capacity installations-.-

Fig. 1, is a front view of a common form of fuel pump with an apparatus embodying;h the present invention connected therew1 Fig. 2 is enlarged vertical sectionalview through the anti-knock pump Vand container;

Fig. 3 is an enlarged front'view of that portion of the mechanism connected directly to the fuel pumping means and showing the means for indicating to the consumer the amount of anti-knock substance sold; and

Fig. 4 is a vertical sectional view taken 'substantially on the line 4-4 of Fig. 3.

In Fig. 1, 10 is a common form of fuel pump comprising a standard 11 pump handle 12, means 13 for indicating the number of gallons of fuel sold, filtering device 14,

outlet pipe 15, and hose 16.

The anti-knock metering means as shown,v

in this view comprises a hollow base 17, preferably formed separately from the standard 1.1,va casing 18 provided. with a cover 19, normally sealed in closed ition by lock 20, the casing. resting on ,t ebase 7 and being adapted to hold ininverted position a container of anti-knock substance'. 21 is a pump standard supporting a pump handle,- 22, an indicating device 23 for reg- 1ste1 ng the number of turns of the handle.

'A pipe 24 connects the pump standard with a pipe section 25 joining 'the pump outlet 15 and hose 16. A cutoff valve within the pipe 24 is operated by handle 26. 27 is a'graduf' ated glass tube mounted on the pipe section 25 for visibly indicating the amount of antiknock substance to be dispensed.. .n

Referring particularly to Fig. 2, the hollow base 17 forms a reservoir 28 having a relatively deep sump 28 intovwhich projects a a common form of counter 23 whose face is visible through a glass 34 in the top of the pump casing.

35 is a pipe leading from the top of pump cylinder 29 upwardly through the standard and then transversely through a wall thereof to a cutoi valve 36 operated by handle 26 (Fig. 1). The opposite side of the valve is .connected to a tube`37, projecting upwardly through pipe24.

vCasing 18 1s formed with a conical lower end wall 38 open in the center and provided with an annular packingy 39 forming a seat l for an inverted cylindrical container 40 from which the anti-knock substance -is supplied. Cover 19 is hinged at 41 to the casing and supports a packing member 42 which presses the container against its seat when the cover is in closin position. A lug 43, projecting upwardly fgrom the lower wall of base 17, supports a vertical pipe 44 pointed on its upper en d 45 and provided with a lateral openmg 46 communicating with reservoir 28. When a can of anti-knock substance is Yinverted and pressed downwardly on the pointed end 45 of pipe 44, the latter punctures a soft metal seal closing the outlet 47 of the container and the anti-knock substance flows into the reservoir until a level substantiallyas,shown is attained. The container, pipe and reservoir form a constant level dvice of a form commonly known 'as the chicken feeding type.

Referring to Figs. 3 and 4. pipel section 2 5 is secured ina predetermined position on pump outlet by a dowel pin 48 fitted in aligned openings in the two members which are connected by threaded sleeve 49. The

bore of pipe section 25 is formed as a Vene turi tube having its constricted opening 50 at the inlet side of the pipe section. This pipe section is formed with a hollow boss 51 to receive the upper end of the pipe 24 forming a protective casing about` the conduit 37, and on the upper wall of the pipe sectionis formed a boss 52 recessed to re-` ceive the lower end of glass' tube 27. Thev upper. end of this tube is seated'in a recess in a head 53 and the head, glass tube and boss 52 are clamped together by rods 54, the tube ends' being packed in their-recesses to prevent leakage. 55is a 'small tube con- I nectlng a passageway 56 leading from the glass ytube into the head 53, with a passageway 57 communicating with the bore of the pipe section 25 at Venturi throat 50.

The upper end of tube 37 is threaded into the lower boss 51 and communicates with .an unobstructed passageway 58 leading u wardly to a spigot 59 and to the glass tu e 27. 60 is a passageway leading from the lower end of the glass tube 27 to the bore of the pipe section 25 on the outlet side of the Venturi throat 50 therein.

Each .of the index plates 63, markedwfrom 1.to 5 and mounted on glass tube 27, indicate successive quantities of anti-knock fluid forced into the tube by each rotation of the pump handle 22. Five units of anti-knock substance forced into the glass 4tube is sufficient to treat ive gallons of fuel dispensed and corresponds to an addition ofl 5 to the counter 23, this addition to the counterbeing effected by live oscillations of the counter operating arm 33 as the anti-knock substance is pumped from the reservoir 28 into the glass tube 27 The normal position of the different parts is as shown in the drawings with the valve 36 openv and the spigot 59 and valve 61 closed. When the glass tube 27 is empty the valve-61 maybe open.

The operation of the apparatus is as fol' lows: When a customer desires fuel whichl is not treated with an anti-knock substance,

the apparatus is used as in common practice, i. e., the handle 12 is operated to pump the desired number of gallons 'of fuel into a container such as the fuel tank of a car.'

. If during the operation the valve 61 is open,

Ve units pump prevents backflow to the reservoir all of the substance in the glass tube is deliveredy to the customer. Ifthe concentrated antiknock or'other substance supplied is desired it is drawn oif through the spigot.. When the operator adds this substance to the fuel dispenser -it is usual practice to lstart pumping the fuel and then turn valvel61 t0 "permit the substance, usually a mixture containing a lead alkyl compound, to flow by gravity into the fuel.

. The connection of the vent pipe 55 to the Venturi throat in the pipe 'connection 25 causes some of the gasoline to flow through the passageway 60 into'the sight glass 27 and flush the latter after the anti-knock sub stance has entered thehose 16. The apparatus .described is adapted particularly for attachment to fuel pump in-A stallations and to the dispensing of large quantitiesof 'ank anti-knock or other substance in the fuel. Theonly connection necessary to a standard pump is the adding of the pipe section 25 to the. fuel delivering fuel treated or the number of units of the anti-knock substance sold. I claim as my invention:

1. In an apparatus of theclass described ,the combination of a fuel dispensing pump; a conduit connected therewith; a container adapted to discharge its contents into said conduit by gravity; and means for metering l a substance into said container.

2'. In an a paratus of the class described the combinatlon of a fuel dis nsmg pump;

a conduit connected therewit a container ada ted to discharge its contents into said con uit by gravity; a valve mechanism be- 1 tween vthe container and conduit; means for metering a. substance into sald container. j Y

3. In an apparatus of theclass described the combination with a fuel metering device; an outlet conduit tlerefor; a sight glass adapted to discharge its contents by gravity into the conduit; and means for metering a substance into the sight glass. l

4. In an apparatus of the class described the combination of a fuel dispensing pump; -a conduit connected therewith, a. container adapted todischarge its contentsA into said conduit by gravity; a valve mechanism between vthe container and conduit; .'a. vent pipe connecting the container andconduit; and means for delivering a. liquid to the-com; tainer.

5. In an apparatus of. the class described the combination of a fuel conduit; a graduated sight glass; a pumping into the sight a fuel pump; an outlet conduit connected therewith; a graduated sight glass supported by the conduit above the latter and adapted to discharge its contents by gravity into the ,I conduit; a valve mechanism between the sight glass and conduit; a vent connected t0 the top of the sight glass; and means for supply-ing a substance to the sight g1ass. s

7. In an attachment for fuel metering devices having a discharge conduit andwa hose; a pipe connection adapted to be inserted between the discharge conduit and hose, a container mounted on and having communication with the pipe connection, and means for delivering a substance to the containen 8. In an attachment for fuel metering de' vices havingva discharge conduit'and a hose; a pipe connection adapted to be inserted between the discharge conduit and hose, a y

container mounted l'on and'halving communication with the pipe connection, and a valve mechanism controlling the communication between the container and pipe connection.

ber of said units therein.

9. In an attachment for fuel metering .devices having a discharge pi connected to a hse; a -pip'econnection a apted to be inserted between the discharge pipe and hose in a predetermined angular position relative thereto; a 'secondary reservoir mounted on top of the pipe conne'f'on and. adapted to discharge its contents pipe connection; means operated metering device from the primary reservoir.

10. In an attachment -or fuel metering devices having a discharge pipe; the combina-v tion of a primary reservoir and a removablel inverted container discharging into'the res-4 ervoir "and adapted to maintain a substanindependentlyof the fuel for delivering a substance Ireservoir to the secondary l tially constant level therein; a pumplo- 4 40- by gravity into the a primary reservoir; and

cated in the reservoir and having unit ca-V l pacity; means for operating the pump and recording the number of units removed from the reservoir; a graduated sight glass adapted to be mounted on the outlet pipe of the "fuel pump Aand t0 discharge its contents into the pipe by ravity; a valve mechanism between the sig t glass and iipe; and an index on the sight glass adapte to show the num- In testimony whereof I hereto aiix'- signature.

` THOMAS MIDGLEY, JR'. i 

